Allow TimeoutSec=0 to work as documented in mount units and elsewhere (#6013)

Since commit 36c16a7cdd ("core: rework unit timeout handling, and add
new setting RuntimeMaxSec=") TimeoutSec=0 in mount units has
cause the mount to timeout immediately instead of never as documented.

There is a similar problem with Socket.TimeoutSec and Swap.TimeoutSec.

These are easily fixed using config_parse_sec_fix_0().

Automount.TimeoutIdleSec looks like it could have the same problem,
but doesn't because the kernel treats '0' as 'no timeout'.
It handle USEC_INFINITY correctly only because that constant has
the value '-1', and when round up, it becomes zero.
To avoid possible confusion, use config_parse_sec_fix_0() as well, and
explicitly handle USEC_INFINITY.
This commit is contained in:
NeilBrown
2017-05-23 17:42:26 +10:00
committed by Lennart Poettering
parent e8a94ce83e
commit 2d79a0bbb9
2 changed files with 9 additions and 6 deletions

View File

@@ -415,8 +415,11 @@ static int autofs_set_timeout(int dev_autofs_fd, int ioctl_fd, usec_t usec) {
init_autofs_dev_ioctl(&param);
param.ioctlfd = ioctl_fd;
/* Convert to seconds, rounding up. */
param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC;
if (usec == USEC_INFINITY)
param.timeout.timeout = 0;
else
/* Convert to seconds, rounding up. */
param.timeout.timeout = (usec + USEC_PER_SEC - 1) / USEC_PER_SEC;
if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_TIMEOUT, &param) < 0)
return -errno;

View File

@@ -299,7 +299,7 @@ Socket.ExecStartPre, config_parse_exec, SOCKET_EXEC
Socket.ExecStartPost, config_parse_exec, SOCKET_EXEC_START_POST, offsetof(Socket, exec_command)
Socket.ExecStopPre, config_parse_exec, SOCKET_EXEC_STOP_PRE, offsetof(Socket, exec_command)
Socket.ExecStopPost, config_parse_exec, SOCKET_EXEC_STOP_POST, offsetof(Socket, exec_command)
Socket.TimeoutSec, config_parse_sec, 0, offsetof(Socket, timeout_usec)
Socket.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Socket, timeout_usec)
Socket.SocketUser, config_parse_user_group, 0, offsetof(Socket, user)
Socket.SocketGroup, config_parse_user_group, 0, offsetof(Socket, group)
Socket.SocketMode, config_parse_mode, 0, offsetof(Socket, socket_mode)
@@ -363,7 +363,7 @@ Mount.What, config_parse_unit_string_printf, 0,
Mount.Where, config_parse_path, 0, offsetof(Mount, where)
Mount.Options, config_parse_unit_string_printf, 0, offsetof(Mount, parameters_fragment.options)
Mount.Type, config_parse_string, 0, offsetof(Mount, parameters_fragment.fstype)
Mount.TimeoutSec, config_parse_sec, 0, offsetof(Mount, timeout_usec)
Mount.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Mount, timeout_usec)
Mount.DirectoryMode, config_parse_mode, 0, offsetof(Mount, directory_mode)
Mount.SloppyOptions, config_parse_bool, 0, offsetof(Mount, sloppy_options)
Mount.LazyUnmount, config_parse_bool, 0, offsetof(Mount, lazy_unmount)
@@ -374,12 +374,12 @@ KILL_CONTEXT_CONFIG_ITEMS(Mount)m4_dnl
m4_dnl
Automount.Where, config_parse_path, 0, offsetof(Automount, where)
Automount.DirectoryMode, config_parse_mode, 0, offsetof(Automount, directory_mode)
Automount.TimeoutIdleSec, config_parse_sec, 0, offsetof(Automount, timeout_idle_usec)
Automount.TimeoutIdleSec, config_parse_sec_fix_0, 0, offsetof(Automount, timeout_idle_usec)
m4_dnl
Swap.What, config_parse_path, 0, offsetof(Swap, parameters_fragment.what)
Swap.Priority, config_parse_int, 0, offsetof(Swap, parameters_fragment.priority)
Swap.Options, config_parse_unit_string_printf, 0, offsetof(Swap, parameters_fragment.options)
Swap.TimeoutSec, config_parse_sec, 0, offsetof(Swap, timeout_usec)
Swap.TimeoutSec, config_parse_sec_fix_0, 0, offsetof(Swap, timeout_usec)
EXEC_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl
CGROUP_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl
KILL_CONTEXT_CONFIG_ITEMS(Swap)m4_dnl